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How many types of covid strains are there - think

The variant, which is responsible for India's recent surge in casesoverwhelming hospitals, has already become the dominant variant in the U. It's believed to be "by far the most contagious variant of this virus that we have seen throughout the whole pandemic," Dr. Each variant has been named after a letter in the Greek alphabet to make it easier for the public to discuss them, per the World Health Organization.

These include getting vaccinatedmasking, or even double maskingavoiding crowds and poorly ventilated indoor spaces, and washing your hands regularly. Here's what else you need to know about the COVID variants, from symptoms, to how lethal they are and whether vaccines will work against them. What is a variant? How does it happen?

While the existence of new variants may be worrisome to the general public, the phenomenon is "not entirely unexpected," Ben Lopman, Ph. A spillover event can occur either through a mutation directly to humans or through an intermediary species that mutates the virus into a human pathogen. It's since spread to the U.

How many types of covid strains are there Video

New Covid-19 strain has 'more mutations' than any other variant, immunologist says

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